#2 is simply stunning. Great colours and coposition.
#4 is really good compositionally and would be my favourite if you'd just used a little fill-in flash to light her features, she is to dark at the moment.
#8 is my favourite of the set. Great contrast and exposure, and a really interesting composition.
#9 and #12 are also good. I like the unusual setting of #9. Both images contain good detail. #12 is a very good macro image.
The rest I could take or leave.
Nice work overall.